Unit 1 Changes
Week 1 Perspectives
Week 2 Alliances
Week 3 Environments
Week 4 Dynamic Earth
Week 5 Using Money

Unit 2 Excursions Across Time
Week 1 Contributions
Week 2 Democracy
Week 3 Ancient Societies
Week 4 Influences
Week 5 Past and Present

Unit 3 Accomplishments
Week 1 Common Ground
Week 2 Transformations
Week 3 Inspiration
Week 4 Milestones
Week 5 A Greener Future

Unit 4 Challenges
Week 1 Changing Environments
Week 2 Overcoming Challenges
Week 3 Standing Tall
Week 4 Shared Experiences
Week 5 Taking Responsibility

Unit 5 Discoveries
Week 1 Myths
Week 2 Personal Strength
Week 3 Innovations
Week 4 Breakthroughs
Week 5 Exploration

Unit 6 Taking Action
Week 1 Resources
Week 2 Witnesses
Week 3 Investigations
Week 4 Extraordinary Finds
Week 5 Taking a Break